Nepean Bay Weather Forecast

    • 9
    • 24

    Mostly sunny

    • 11
    • 25

    Partly cloudy

    • 14
    • 26

    Partly cloudy

    • 15
    • 26

    Mostly sunny

    • 15
    • 24

    Showers

    • 11
    • 19

    Showers. Possible storm

    • 11
    • 19

    Showers

Today 28 Apr Kangaroo Island

Mostly sunny. The chance of morning fog. Light winds becoming south to southeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

Investigator Strait Coastal Waters

Wind
Variable about 10 knots becoming southeasterly 10 to 15 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
Weather
Mostly sunny.
Weather Situation
A strong high pressure system over the Tasman Sea extends a ridge across South Australia through to Friday. Northerly winds freshen on Friday ahead of a trough that is forecast to move across the far west Friday afternoon, then continue across the state during the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

April Temperature

Kingscote Airport (7km)

  • Lowest 18 April, 2026

    3.6 °C

  • Average April

    15.7 °C

  • Highest 21 April, 2026

    26.8 °C

Climate (2021–Present)

Kingscote Airport (7km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.1 °C
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